Experienced Electrician! Here to Answer Any and All Growroom Electrical Questions

BigBudBalls

Well-Known Member
Well *now* its shorted. And its no longer under warranty, since you used it incorrectly.

"Gee Mr. Chevy dealer, I just drove my Corvette into a brick wall and now the windshield leaks. (along with all the fluids)"

I'm new here and I heard this was the place to go to solve electrical issues.


I accidentally plugged my t5 into a 240v outlet yesterday and now it's not working anymore. I'm pretty sure I shorted a circuit. Is there any way you know to fix this kind of thing, I really need this light for my mother.

It's still under warranty but I don't think they'd cover that kind of damage, right?
 

BigBudBalls

Well-Known Member
What a dryer outlet supplies is variable. you NEED to check the breaker.
In all honesty, you sound too 'green' to go 3.6KW.
Heavy duty mean *nothing* its arbitrary.
Plywood mounting = unprofessional/homemade

hi I was wounding about setting up 3 1k hps and one 600 hps I seen at the local shop they sell a "control board" that pugs into the dryer plug which I belive is 40 amps. this "controller" has 8 outlets and a heavy duty timer on it and its all housed on a peice of 1/2 inch plywood and retails for $395.... Is there anyone I could make this same thing for alot less? And will it run what i want?
 

BigBudBalls

Well-Known Member
'Stoned man, c'mon. You should know better the people we have here. Offering up an un-housed (open frame) item for HV.
There are plenty of on or off delay relays out there.

what you need, is a timer controlled relay/contactor that is overridden by a one shot relay

a one shot relay works like this-
when it recieves voltage on its input terminal, the relay activates for whatever period of time you set it for. when the time period expires, the relay switches off (or on, depending how you have it configured) and the relay remains in that state untill voltage is removed from its input terminal.

so pretty much, what you would do, is have the input terminal on the one shot relay connected to the line voltage, ahead of the timer that controls the contactor. that way, if the power is interrupted (like in an outage) when the power comes back on, it will activate the timer, and stop the lights from turning on... then the timer runs out, the lights turn on, and your good to go untill the next interruption event.

the key to this operation is using the one shot relay to control the coil of a contactor.
the one shot relay itself wont be big enough to handle switching the lights, so you have to have that contactor for it to work right.

click me:
 

InvestInMe

Well-Known Member
"What a dryer outlet supplies is variable. you NEED to check the breaker.
In all honesty, you sound too 'green' to go 3.6KW.
Heavy duty mean *nothing* its arbitrary.
Plywood mounting = unprofessional/homemade"

I agree it looks homemade .. Some electriction makes them in quebec and shipps them for 395 each and it looks liek $100 worth the parts maybe ....
The guy at the local shop told me that you jsut plug it into the the dryer plug ... In my entrance its a 40 amp breaker ... not the controllers I seen on website some are rated for 60 amps and 50 amp thats why IM asking ... Is there a controll board I can make myself that can plug into my dryer outlet whis in this case is 40 amps? and is 3600 watts too much for this ?
 

seebas

Member
literally looked everywhere, how do you rewire a ss-1 ballast so that it can run on 240v w/o having to purchase the MVP chord??
 
Some important electrical questions I have been wondering for quite some time now... + rep for help
1. Should I be running my lights (600hps flower 400mh veg) on a 240v (currently on 120v for the past yr with no problems)
2. If so can I change a 120 to a 240 without re-wiring the circuit?
3. If I am tripping my breaker in the room (20amp) is it safe to switch it out with a 30 amp or will it over load the 20 amp wires?
4. Are extension cords safe to use? (14 gauge 30ft running about 1000watts threw)
5. Do you waste current/money using them?
 

BigBudBalls

Well-Known Member
Some important electrical questions I have been wondering for quite some time now... + rep for help
1. Should I be running my lights (600hps flower 400mh veg) on a 240v (currently on 120v for the past yr with no problems)
Why change?
2. If so can I change a 120 to a 240 without re-wiring the circuit?
Meaning in the walls? Probably not by code regulations. Theoretically, yes.
3. If I am tripping my breaker in the room (20amp) is it safe to switch it out with a 30 amp or will it over load the 20 amp wires?
NO. The breakers are there to PROTECT THE WIRES from melting the insulation then shorting and the possible fire that can come shortly afterwards.

4. Are extension cords safe to use? (14 gauge 30ft running about 1000watts threw)
5. Do you waste current/money using them?
OSHA hates ext cord. So that should give you an indication. For an ext cord, I would up the size of the wire from what an 'inside wall' run requires. Its multi stranded cord over solid wire.

Yo can make a killer ext cord yourself with some SEW/SOW (or the like, getting dyslexic 5toned can give the cable I'm talking about) wire obtainable @ Home Cheapo or the like. and toss on a few ends. Used on the machines I service (upwards of 100amps @ 480 V)
 

IAm5toned

Well-Known Member
its SO (single outlet) or SJ cord.

SJ is the best... its more flexible, and withstands uv light better than SO, though more expensive.

either way, SO or SJ cord. you wont be able to tell them apart besides the label.
i believe the outer jacket of the SJ is silicone infused rubber. the stuff is unbeleivably tough, you can drive a truck over it, and it still works.
 
Apparently I don't have priviledes to PM. Brick I hope you are still out there. Or does anyone know how to PM and what priviledges I have? Thanks everyone. Rick
 

kindone

Active Member
Excellent thread , I have a question and maybe its stupid but I dont think so, Can I use the same circuit that my hardwired smoke alarms are on to power other things?
 

IAm5toned

Well-Known Member
'Stoned man, c'mon. You should know better the people we have here. Offering up an un-housed (open frame) item for HV.
There are plenty of on or off delay relays out there.
find one that works as well for a better price, and im sold.
i can buy 2 of those, and the boxes to enclose them, (the relays come with mounting hardware) for less than the cost of a single enclosed one shot relay.
 

BigBudBalls

Well-Known Member
find one that works as well for a better price, and im sold.
i can buy 2 of those, and the boxes to enclose them, (the relays come with mounting hardware) for less than the cost of a single enclosed one shot relay.
True, but my point was the typical level of competence of the people here......
 

JayDoe71

Well-Known Member
Hi Brick, thanks for helping us all out! I have a pretty straight forward question: I would like to power my grow room with one extention cord, meaning one circuit. The circuit will be dedicated to the grow room. It's 20 amps, and I'm assuming 120V (safe assumption?). 20 amps times 120V is 2400 watt capacity, correct? So with an 80% safe capacity I should be able to handle up to 1920 watts. Please let me know if my thinking is correct so far.

The home I just moved into was recently upgraded, and the new box is mostly 20 and 30 amp circuits. The four bedroom house has total 800 amps.

I plan on connecting the extention cord to a large surge protector and then neatly routing the peripherals and timers as nessessary. The room will power the following: 1K light + ballast = 1100 watts, 8" Vortex fan = 260 watts, fourescents = 216 watts, water pump 28 watts, 6" fans (2) = 84, circutating fan = 84, Hanna Trimeter = 5 watts (?). This is a grand total of 1777 watts running off of the single 20 amp circuit. Will I be ok providing nothing else is attached to the same circuit?

Thanks in advance...Jay
 

IAm5toned

Well-Known Member
Hi Brick, thanks for helping us all out! I have a pretty straight forward question: I would like to power my grow room with one extention cord, meaning one circuit. The circuit will be dedicated to the grow room. It's 20 amps, and I'm assuming 120V (safe assumption?). 20 amps times 120V is 2400 watt capacity, correct? So with an 80% safe capacity I should be able to handle up to 1920 watts. Please let me know if my thinking is correct so far.

The home I just moved into was recently upgraded, and the new box is mostly 20 and 30 amp circuits. The four bedroom house has total 800 amps.

I plan on connecting the extention cord to a large surge protector and then neatly routing the peripherals and timers as nessessary. The room will power the following: 1K light + ballast = 1100 watts, 8" Vortex fan = 260 watts, fourescents = 216 watts, water pump 28 watts, 6" fans (2) = 84, circutating fan = 84, Hanna Trimeter = 5 watts (?). This is a grand total of 1777 watts running off of the single 20 amp circuit. Will I be ok providing nothing else is attached to the same circuit?

Thanks in advance...Jay
you would sleep better at night, if you made a cord out of #10awg romex, and hardwired it to where you would have originally plugged in the xcord, and then hardwired the other end of it to a few plugs mounted on a board, instead of a cord running a powerstrip running 1800w. thats a firetrap man, but if you must, make for damn sure you buy at least a #10 awg extension cord
 

TheWinter

Active Member
Thanks, man, but hardwiring is a little out of my realm. I will consider running two Xcords rather then one
Yea definitely run more than one line. The problem isn't nessesarily the line itself, Its the socket connection. I just had a situation where i nearly melted a (defective) 20a outlet. My extension cord was a big 10 gauge bastard but it just heated up the socket because it didn't make a perfect connection. BTW the socket & extension cord were both brand new. It can totally happen when your right up on the amp limits. If you can, run one #12 extension cord to your 1000 watter, and run another #12 for your accessories.
 
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